Information uncertainty is inherent in many problems and is often subtle and complicated to understand. While visualization is a powerful means for exploring and understanding info...
This paper reports results from two field trials of TrottingPal, a mobile system that supports event information management and seamless collaboration between spectators at the tr...
In this paper, we propose a hierarchical architecture for grouping peers into clusters in a large-scale BitTorrent-like underlying overlay network in such a way that clusters are e...
Trust is a crucial basis for interactions among parties in large, open systems. Yet, the scale and dynamism of such systems make it infeasible for each party to have a direct basi...
In these years, the security problem becomes more important to everyone using computers. However, vulnerabilities on computers are found so frequently that system managers can not...